"JOURNAL OF RADIO ELECTRONICS" (Zhurnal Radioelektroniki ISSN 1684-1719, N 1, 2019

contents of issue      DOI  10.30898/1684-1719.2019.1.12    full text in Russian (pdf)  

Numerical study of the scattering characteristics of a cylindrical active dumping system based on a controlled Van-Atta array


F. S. Topalov

Institute of Radiotechnical Systems and Control, Southern Federal University

347922, Taganrog, per. Nekrasovskiy, 44


The paper is received on November 29, 2018, after correction – on January 22, 2019


Abstract. In this paper, cylindrical active cancellation system (ACS) based on controllable waveguide Van Atta reflector with circulators, power amplifiers and phase shifters is proposed. Scattering characteristics of a horizontally polarized plane electromagnetic wave on a conducting cylinder with ACS are investigated numerically using Ansys HFSS. The simplified numerical model without controlling device allowed to find RCS minimization condition through the search of signal power and phase in ACS antennas ports.  It is shown that power in ports, which is required to minimize RCS, is proportional to the RCS value of the ACS with matched antennas. It is shown that independent phase shifters controlling can maintain Van Atta array self-focusing at not normal angles of incidence. Results obtained at 10 GHz show that it is possible to minimize cylinder RCS more than -50 dB in desired direction. Worst case -10 dB dumping in 3° angle sector and 300 MHz band is achieved. In addition, the radiation patterns and scattering diagrams of the ADS for different minimization angles are shown.

Key words: RCS minimization, stealthiness, cylinder, active damping system, Van Atta array, monostatic RCS.


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For citation:

F. S. Topalov. Numerical study of the scattering characteristics of a cylindrical active dumping system based on a controlled Van-Atta array. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2019. No. 1. Available at http://jre.cplire.ru/jre/jan19/12/text.pdf

DOI  10.30898/1684-1719.2019.1.12